.der files are used only by the iOS platform for SSL pinning. This
moves them out of the `platform/default/resources` directory and into
`platform/ios/resources`. The make configuration for Android is
updated so that it stops attempting to copy the files at all.
This updates the cert for the staging environment. It also adjusts the
telem implementation to send along the horizontal accuracy for each
location event and removes the previous battery level gathering logic.
